[asterisk-bugs] [JIRA] (ASTERISK-28817) chan_pjsip: constant DTMF tone if RTP is not setup yet

[Friendly Automation (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-28817?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Friendly Automation closed ASTERISK-28817.
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    Resolution: Fixed

> chan_pjsip: constant DTMF tone if RTP is not setup yet
> ------------------------------------------------------
>
>                 Key: ASTERISK-28817
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28817
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_pjsip
>    Affects Versions: 13.32.0, GIT, 16.9.0, 17.3.0
>            Reporter: Kevin Harwell
>            Assignee: Kevin Harwell
>            Severity: Minor
>
> If chan_pjsip is configured for DTMF_RFC_4733, and the core triggers a digit begin before media or rtp has been setup then it's possible the outgoing channel will hear a constant DTMF tone upon answering.
> This happens because when there is no media or rtp chan_pjsip notifies the core to initiate inband DTMF. However, upon digit end if media and rtp become available then chan_pjsip does not notify the core to stop inband DTMF. Thus the tone continues playing.



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